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NI PXI-5422 Calibration Procedure 44 ni.com
g. Call niFgen_WriteBinary16AnalogStaticValue (niFgen
Write Binary 16 Analog Static Value VI) to set the main DAC
value using the following parameters:
• vi: The session handle returned from
niFgen_InitExtCal
• channelName:
"0"
• value: –29232
h. Call niFgen_Commit (niFgen Commit VI) to commit the
attribute values to the device using the following parameter:
• vi: The session handle returned from
niFgen_InitExtCal
i. Wait 500 ms for the output to settle.
j. Use the DMM to measure the voltage output by the device. This
measurement is
measurement 1, which is used in step 8.
8. Call
niFgen_CalAdjustMainPathPreAmpGain (niFgen Cal
Adjust Main Path Pre Amp Gain VI) using the following parameters:
• vi: The session handle returned from
niFgen_InitExtCal
• channelName: "0"
• configuration: The Current Configuration value for the current
iteration from Table 8
• mainDACValues: An array containing two elements—the two
values (
25233, –29232) that you set for the main DAC in the
order that you measured them
• gainDACValues: An array containing two elements—the two
values (
1500, 2000) that you set for the gain DAC in the order
that you measured them
• offsetDACValues: An array containing one element—the value
(
32000) that you set for the offset DAC
• measuredOutputs: An array containing two elements—the
two output voltages (
measurement 0, measurement 1) that
you measured in the order that you measured them